#3779C9#3779C9

#3779C9 is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.3% C 0.141 H 254.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3779C9
RGB	rgb(55, 121, 201)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 73%, 79%)
CMYK	cmyk(72.6%, 39.8%, 0%, 21.2%)
CIE-LAB	lab(50.34, 6.17, -47.62)
CIE-LCH	lch(50.34, 48.02, 277.38°)
OKLab	oklab(57.32% -0.0366 -0.1359)
OKLCH	oklch(57.32% 0.141 254.9)
XYZ	xyz(18.9516, 18.7019, 57.8580)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779C9 #C98737

analogous

#37C2C9 #3779C9 #3E37C9

triadic

#3779C9 #C93779 #79C937

tetradic

#3779C9 #C937C2 #C98737 #37C93E

square

#3779C9 #C937C2 #C98737 #37C93E

split-complementary

#3779C9 #C93E37 #C2C937

monochromatic

#1C3F69 #295C99 #3779C9 #6799D6 #97BAE3

Accessibility & contrast

On white

4.43

#3779C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3779C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779C9

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779C9	#FFFFFF	#000000	##000000
##3779C9	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537FCC

Deuteranopia (green-blind)

#3C72C7

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3779c9;
/* rgb */ color: rgb(55, 121, 201);
/* oklch */ color: oklch(57.3% 0.141 254.9);

Tailwind

colors: {
  custom: {
    50: '#809fda',
    500: '#3779c9',
    950: '#000000',
  },
}

SCSS

$custom: #3779c9;
$custom-light: #809fda;
$custom-dark: #000000;

JSON

{
  "hex": "#3779c9",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 201
  },
  "hsl": {
    "h": 212.877,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.57321,
    "c": 0.14072,
    "h": 254.9
  },
  "luminance": 0.18704
}

Semantic roles & 50–950 ramp

primary

#3779C9

secondary

#CFB18D

accent

#9B47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3779C9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →